Perhaps you should try some spelling variations:
chiet tach » chieu sach
hanh trung » thanh trung, hanh trang, manh trung
hoc chiet » hoc thiet, hoc nhiet, hoc hien
dung cong » dung trong
trung ap » trung cap, trung lap, trung tam
cong dan » cong san, cong tan, huong dan
toan cao » toan ban
toan tap » toan ban
ap dung » xay dung, van dung

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: hoc chiet tach - hanh trung ap dung cong dan ((toan cao) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chiet tach - hanh trung ap dung cong dan ((toan cao) OR (toan tap))*.